I went from 3.66 to 4.03 and found two problems:
1. All of my Favorites lists were changed to contain every channel available. Had to manually go back into each and set them up again. Since then, I've noticed a couple of channels on one of lists that I did not include but are there now.
2. On the programming guide, it no longer displays recording info. IE. It used to tell you what was scheduled to be recorded, it's priority and if you scheduled only new episodes and a rerun was scheduled, it would show an X. Mine no longer shows this info. The only way I can tell if a recording is going on or will happen is to look at the DVR schedule or recording listing (or see the red light for current recordings). Are these problems unique to my unit or are others finding the same issues?